The STANLEY STMT71648 40PC 14/38DR SOCKET SET – The STANLEY 40 Piece Mechanics Socket Set is constructed of high-alloy steel and heat-treated for performance. The Max-Drive design provides 15-percent more torque, and meets or exceeds ANSI standards for sockets and ratchets. This set includes a 72 tooth ratchet for smooth operation in tight spaces. Fatures & Benefits: Full polish chrome finish for anti-corrosion protection, Includes a 72 tooth count ratchet which allows for a 5 degree arc swing. Tough and durable carry case for easy storage and mobility, Meets or exceeds ANSI specifications.